Looks like the website listing was true. Tales of Vesperia will be released this winter for Xbox One, PC, Switch and PS4.

Tales of Vesperia Definitive Edition is coming to PS4, XB1, PC and Switch this year! Including the content of the PS3 version for the first time in Europe, embark on an amazing adventure with Yuri featuring both JP and EN voice overs! #Talesofvesperiapic.twitter.com/ORbP0wVdgH